Hot-water heating system.



PATENTBD SEPT. 24, 1907.

G. S. GOMSTOCK.

HOT "WATER HEATING SYSTEM. APPLIOATION I ILED JUNE 1. 1903.

Qttoz mu UNITED STATES GEORGE S. COMSTOOK, OF MEG HAN IOSBURG,PENNSYLVANIA HOT-WATER HEATING- SYEiTEM.

3T1. 866,842. Specification of Letters Patent. latented Sept. 24, 907.

Apolication filed June 1,1903. Serial No. 159,567.

To all whom it may concern: I Be it known that I, GEORGE S. COMSTOCK, acitizen I of the United States, residing at Mechanicsburg, in the countyof Cumberland and State of Pennsylvania, have invented certain newand'useful Improvements in Hot- Watcr Heating Systems, .of which thefollowing I is a specification. 1 This invention relates to improvementsin hot water heating systems its object being to provide simple andefficient means for utilizing the heat of an ordinary fu rmice and itssmoke flue for heating water and causing the heated water to-ascend toan elevated expansion tank, from whence it will 'radiators to be againheated.

The invention will be fully described hereinafter, reference being hadto the accompanying drawing, which is a sectional elevation showing aheating system embodying my invention.

A. is a fire box or furnacefrom the upper end of which a smoke stack orflue Bl extends upwardly out through the roof of the building. These maybe of any suitable form and will preferably be made of metal. A casingsurrounds the'iurnace and flue to leave a space between them, suchcasing extending to a height above the highest point,, where heat is tobe distributed through a radintoi. he space D between the casing C andthe furnace and flue constitutes a continuous water chamberwhichleommunicates at its upper end with an expansion tank E supportedat the upper end of the casing C and through which the smoke stack Bextends.

From the expansion tank E a pipe F leads downwardly and from this pipebraneh pipes f lead to radiators G. From the radiators the water flowsthrough pipes it into a return pipe H which enters the water space I)near its lower end. The pipes f are provided with valves 9 to controlthe How of hot water to the radiators.

Such being the preferred construction the operation will be as follows:The water space Dwill befilled with water and the expansion tank nearlyfilled. If now a fire is burned in the furnace the heat radiatedtherefrom and from the smoke stack will heat the water and the hottestwater will rise to the expan sion tank whence it will flow down the pipeF through the radiators to the pipe H which returns it to,the bot tom ofthe water space.

flow downwardly through It will be observed that each radiator isdirectly and independently connected to the hot water supply pipeloading from the expansion tank and consequently the water supplied totheseveral radiators will be of substantially the sameteinperature. Allthe radiators are also directly and independently connected to thereturnpipe and-as soon as the waterflows through the radiator it is carried bythe return pipe to the-lower part of the water casing to be againheated. Thewatcr is thus kept-in constant circulationand the hottestwater is always in the expansion chamber available for distributionthrough the radiators. Another advantage of my invention is that itaffords perfect protection against any part of the building accidentallycatching fire from the stove or the flue, as the continuous water jacketincl osing the furnace and the flue will effectually prevent theradiation of heat fromeither to a sufficient extent to set fire toadjacent wood work.

As shown in the drawing the,water jacket incloses the ash pit as well asthefurnace. Suitable openings, indicated by a and b, are provided inthefurnace and ash pit, and these will be provided with doors as usual.The tank E is shown as'provided with a cover a and a vent t. 1

Without limiting myself to the precise details of constructionillustrated and described, I claim The combination with stack, thelatter extending through the floor of a building. of a casing inclosingthe furnace, ash pit, and smoke stack spaced a sh ort distancetherefrom, to form a continuous thin water jacket entirely surroundingthe heating apparatus and smoke stack so as to form tank supported atthe upper end of which said water space communicates, a covering forsaid expansion tank through which the smoke stack passes, and with whichit is in engagement, a radiator below the said tank, a pipe leading fromthe tanktothe radiator, and a pipe leading from the radiator to thelower portion of the water space, substantially as set forth. a

In testimony whereof I have signed my name to this specification in thepresence of two subscrlbin'g witnesses.

GEORGE S. COMSTOCK. Witnesses a SAML. A. LANDES, ARNA L. GRUNDER.

a furnace, its ash pit and smoke

